17.1 sec in total
1.9 sec
15 sec
175 ms
Click here to check amazing Szdc content for Czech Republic. Otherwise, check out these important facts you probably never knew about szdc.cz
Správa železnic, státní organizace
Visit szdc.czWe analyzed Szdc.cz page load time and found that the first response time was 1.9 sec and then it took 15.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
szdc.cz performance score
name
value
score
weighting
Value8.4 s
0/100
10%
Value11.2 s
0/100
25%
Value11.2 s
5/100
10%
Value630 ms
47/100
30%
Value0.001
100/100
15%
Value14.8 s
8/100
10%
1900 ms
2044 ms
1711 ms
1928 ms
2087 ms
Our browser made a total of 45 requests to load all elements on the main page. We found that 96% of them (43 requests) were addressed to the original Szdc.cz, 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (8.4 sec) belongs to the original domain Szdc.cz.
Page size can be reduced by 190.6 kB (27%)
714.7 kB
524.1 kB
In fact, the total size of Szdc.cz main page is 714.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 552.2 kB which makes up the majority of the site volume.
Potential reduce by 23.2 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 9.7 kB, which is 35% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 23.2 kB or 84% of the original size.
Potential reduce by 84.0 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Szdc needs image optimization as it can save up to 84.0 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 54.0 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 54.0 kB or 55% of the original size.
Potential reduce by 29.4 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Szdc.cz needs all CSS files to be minified and compressed as it can save up to 29.4 kB or 82% of the original size.
Number of requests can be reduced by 18 (41%)
44
26
The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Szdc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.
index.html
1900 ms
basic2.css
2044 ms
index.css
1711 ms
flowplayer.js
1928 ms
jquery.js
2087 ms
global.js
1713 ms
gatag.js
1714 ms
gaset.js
1719 ms
body.bg.top.repeat.png
1343 ms
body.bg.top.png
1450 ms
index_logo.png
1450 ms
index.content.bg.png
1453 ms
index.boxes.png
1561 ms
arrow.index.gold.png
1340 ms
ico-lists.png
1462 ms
hr.png
1463 ms
katalog-zel-soucasti.jpg
3327 ms
vstup-zdc.jpg
3334 ms
nej-nadrazi-n-jicin.jpg
3448 ms
tabule-mala.jpg
3448 ms
prejezd-maly.jpg
3336 ms
nemovitosti.jpg
3222 ms
vyluky2.jpg
4982 ms
banner-skoly.jpg
4870 ms
mapy-mala.jpg
4990 ms
prezentace-staveb.jpg
4983 ms
napiste-nam.jpg
4877 ms
fotosoutez-2016.jpg
5101 ms
idos-banner.jpg
6775 ms
arr4.gif
6448 ms
ico-envelope.png
6447 ms
ico-list.png
6446 ms
menu.bg.png
6443 ms
menu.drop.roof.gif
6444 ms
decors.gif
6565 ms
hr-menu.png
6564 ms
index_decoration.jpg
6895 ms
ico-sitemap.png
6562 ms
ico-plus.png
6561 ms
body.bg.bottom.repeat.png
8087 ms
body.bg.bottom.png
8415 ms
ga.js
24 ms
__utm.gif
23 ms
szdc.gif
120 ms
print2.css
1446 ms
szdc.cz accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Image elements do not have [alt] attributes
szdc.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
szdc.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
CS
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Szdc.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Szdc.cz main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
szdc.cz
Open Graph description is not detected on the main page of Szdc. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: